CN103083086A - Control Unit And Medical Examination Apparatus - Google Patents

Control Unit And Medical Examination Apparatus Download PDF

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Publication number
CN103083086A
CN103083086A CN2012104180362A CN201210418036A CN103083086A CN 103083086 A CN103083086 A CN 103083086A CN 2012104180362 A CN2012104180362 A CN 2012104180362A CN 201210418036 A CN201210418036 A CN 201210418036A CN 103083086 A CN103083086 A CN 103083086A
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control unit
parameter
injection
monitoring arrangement
patient
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CN103083086B (en
Inventor
S.阿萨曼
B.海希曼
R.默格斯
M.施米特
S.施米特
K.韦斯特法尔
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Siemens AG
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Siemens AG
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/02Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computerised tomographs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/48Diagnostic techniques
    • A61B6/481Diagnostic techniques involving the use of contrast agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03Computerised tomographs
    • A61B6/032Transmission computed tomography [CT]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50Clinical applications
    • A61B6/507Clinical applications involving determination of haemodynamic parameters, e.g. perfusion CT
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/54Control of apparatus or devices for radiation diagnosis
    • A61B6/541Control of apparatus or devices for radiation diagnosis involving acquisition triggered by a physiological signal

Abstract

A control unit for an equipment arrangement is provided. The control unit includes an imaging modality, a measurement device for measuring a control variable and a controllable injection device for a regulatory substance influencing the control variable, wherein the injection rate of the injection device may be varied during a data acquisition such that a proposed value for the control variable is reached.

Description

Control unit and medical examination apparatus
Technical field
The present invention relates to a kind of control unit and a kind of medical examination apparatus.
Background technology
If check the heart perfusion in the patient by magnetic resonance tomography (being called for short MRT), that is, the hemoperfusion of heart is usually on the one hand in so-called resting state and on the other hand at so-called load condition measurement heart perfusion.Why need like this, narrow because only just can determine for the coronary vasodilator of expansion under load, namely whether on function be important to blood vessel if narrowing down.Narrowly in resting state usually " covered " by the compensatory dilation of blood vessel institute.This means, due to the elasticity of blood vessel, guaranteed typical blood flow for resting state although exist to narrow down.Only rise on following degree in load condition hematochezia flow rate, make and no longer can come balanced narrowing down by the elasticity of blood vessel.Correspondingly, just show under load condition, whether wide the opening of blood vessel is possible or whether problem is arranged owing to narrowing down has affected the function of blood vessel.
When checking the patient by MRT for the load condition of heart can only be difficult to the physical loads by the patient cause.In addition, some patients are improper due to its state is placed in these patients under physical loads.Therefore the load condition for heart starts usually by the following,, gives chemical substance by injection to the patient that is.
In this present common practice be, for the patient based on its body weight from form selective dose and during the inspection of reality the injection this dosage.By image mode, namely MRT does not depend on correspondingly that to patient's inspection in fact how the patient carries out in response to described injection, thereby being defined in of expectation of load condition that is used for the inspection of heart perfusion is only possible in this case under certain condition.Do not carry out in principle the coordination between the inspection of deciding dosage, injection and reality.
Summary of the invention
Set out thus, the technical problem to be solved in the present invention is, proposes a kind of control unit and medical examination apparatus, can be for checking the mode that coordinate mutually better injection device and produce image by it.
The control unit that setting the following describes for apparatus, it comprises mode, the measuring device that is used for the measuring and adjusting parameter that produces image and is used for affecting the controlled injection device of the Auto-regulator of described adjusting parameter.Be configured at this control unit, with value or the time-evolution, particularly injection rate of at least one device parameter of injection device, change like this during data acquisition, make the value that reaches for the plan of regulating parameter.Utilize apparatus to realize thus a kind of regulating loop, to produce the mode of image by this regulating loop, for example magnetic resonance tomography instrument (MRT) or (X ray) computed tomograph (CT), and controlled injection device, for example syringe pump, coordinate mutually for patient's inspection.The data acquisition that carries out in checking process should make the healthcare givers to set up a diagnosis based on the data with collecting in this generation.
Auto-regulator have in particular dissolved stress the chemical substance of liquid state of effective ingredient, its heart with the patient is placed under load condition, carry out thus the measurement of the heart perfusion under load condition.Be similar to thus that (load-EKG) situation checks, is placed in the load condition that resting state with respect to the patient improved at this inspection cardiac blood circulation and particularly heart at so-called load ECG.But not being that effort by physical loads or patient causes in this case for the load condition of heart or stress state, be not namely by additional body movement, but almost the artificially causes by Auto-regulator and its effective ingredient.
Measuring device is in this current stress level or load condition that is used to determine the patient, and method is heart beating or the blood pressure that for example monitors the patient.Control like this injection device based on these information, for example make by for the injection rate of the selection of Auto-regulator and the patient that then the carries out close rate to the Auto-regulator of injection, reach the stress level of plan and reach thus the load condition of plan.Then begin the actual inspection to the patient in this load condition, wherein produce and accumulate the view data of the diagnosis that is used for the back by the mode that produces image in the scope of data acquisition.Auto-regulator is not contrast agent.Additionally be used in by the scope of mode to patient's actual inspection that produces image but contrast agent is preferred.
Regulating loop by such realization not only can provide in advance plan and for the particularly advantageous stress level of selected inspection, in addition can be with by checking and particularly by Auto-regulator, patient's load limit being arrived relative little scale.Should consider at this, be obvious load for the Auto-regulator of the inspection necessity under load condition for patient's health, and particularly the patient for weakness is relevant to fully important health risk for it.What correspondingly be worth expectation is, the dosage of the Auto-regulator that during checking gives is chosen as low as far as possible, wherein must reach simultaneously for checking required load condition.Most of Auto-regulator comprises effective ingredient in addition, for described effective ingredient, manually decide dosage (for example showing based on value) and be proved to be as being disadvantageous and difficult, because this effective ingredient is very different and cause specific to reaction thus in potential patient.Widely used effective ingredient is for example
Figure BDA00002312233000021
Its usually with the injection rate of 5 milliliters of 2 – per minute in the situation that the concentration of 3 milligrams every milliliter be injected on the time period of 5 minutes.At this, Adenosin has the very short half-life in the scope of several seconds in patient's health.At this, the expression patient keeps the half-life of tolerance how long to depend on the degradation rate of effective ingredient in patient body and obviously fluctuation between different patients to the reaction of effective ingredient.Correspondingly, particularly manually decide the special inaccuracy of dosage based on the value table of the relation of the body weight that dosage and patient have been described.Monitor simultaneously that by the control to injection rate in this introduction the patient to the reaction of injection and the adjustment again to injection rate of then carrying out, can successfully be achieved as follows target on the contrary: the dosage that gives of Auto-regulator is chosen as low as far as possible and causes simultaneously the load condition of plan.
But injection rate is not to be all under any circumstance unique device parameter at this, and its value or its time trend provide in advance and preferably automatically change by control unit, regulate the value of the plan of parameter to reach the unit.Difference according to the structure of control unit additionally or alternatively, arranges other device parameters, such as temperature or the mixing ratio between Auto-regulator concentration and solvent of Auto-regulator.
A kind of distortion of control unit is also favourable, and wherein apparatus comprises the inspection parameter that can affect by Auto-regulator for measuring
Figure BDA00002312233000031
Monitoring arrangement.Monitoring arrangement at this in particular as the additional protection for the patient.Utilize described monitoring arrangement inspection, whether the patient carries out as arranging the reaction of the Auto-regulator injected, and perhaps whether the patient is for example because reaction unexpected or that do not expect occurs in anaphylaxis.According to the difference of implementing, monitoring arrangement provides by measuring device and control unit at this, but preferably provides by a kind of distortion, and additional and monitoring arrangement that preferably work alone is used for monitoring the inspection parameter in this distortion.If show extremely, check that namely the trend of not expecting of time-evolution of parameter or itself and rated value depart from, apparatus and particularly injection device are set to safe mode.In the situation that for example check heart perfusion by MRT, utilize measuring device to gather blood pressure as regulating parameter and utilizing simultaneously monitoring arrangement to monitor that patient's heart beating is as checking parameter.By regulating the injection rate for Auto-regulator, patient's blood pressure is raised to the predetermined value for the inspection of reality.Carry out concurrently the supervision to patient's heart beating, to guarantee not occur patient's problematic load during whole inspection.If the inspection parameter that monitors by monitoring arrangement, exemplary at this is that patient's heart beating surpasses predetermined threshold value or boundary value, and by monitoring arrangement trigger alarm situation, method is for example to export acoustics or optical signalling.
In favourable expansion, apparatus is switched to safe mode under alarm condition.According to enforcement distortion separately, undertaken by monitoring arrangement itself or undertaken by control unit in this this conversion to safe mode, this control unit is controlled or in this case or by monitoring arrangement through the information of the connected reference monitoring arrangement of signalling technique.Because apparatus preferably carries out to the conversion of safe mode automatically, so for example can avoid the time delay that the response time due to the operator causes, got rid of as much as possible thus the danger situation for the patient.
At this, the following enforcement of control unit is suitable: the injection rate of injection device descends in safe mode in this enforcement.As a result of, patient's stress level also is lowered to less tolerance usually when entering alarm condition, avoids thus the possible danger situation for the patient.Even when not reaching in this case when regulating the value that at first arranges of parameter, however also there is following probability: be enough at this stress level that constantly reaches on following degree for the inspection of reality, that is the inspection that, has moved needn't be in the situation that do not have data acquisition to be interrupted.
This is alternatively arranged, disconnect injection device under safe mode.At this, will inject and preferably also have whole inspection immediately and no matter data acquisition is complete or can also become complete and interrupt.The injection of Auto-regulator such interrupt immediately in particular for realize in the patient strong especially effect and thus the reduction of injection rate can not cause enough fast Auto-regulator settings of returning of stress level.
Preferably implement according to another of control unit, for checking that parameter arranges the first and second boundary values, wherein, reduce the injection rate of injection device when checking that parameter surpasses first boundary value, and when checking that parameter surpasses the Second Edge dividing value disconnection injection device.Realized by this way the security system of two-stage, made up the advantage of two previously described distortion in described security system.Almost at first wait for after reaching first boundary value, the minimizing of the expectation of stress level by the reduction that provides in advance or by repeatedly, particularly whether the reduction of the injection rate of step structure realizes.Only have when reaching the Second Edge dividing value and mean that minimizing by injection rate can not or can not reach the reduction of expectation of stress level fast enough, just interrupt injection fully.
What have in addition advantage is that injection rate improves with the rate of increase that provides in advance from the basic value that provides in advance during data acquisition, until reach the load condition of plan.That injection rate to the load condition that causes plan in patient is separately soundd out in each checks by this way.
Suitably except Auto-regulator injection of contrast medium also, wherein for this reason preferably use common injection device.
Another most suitable enforcement distortion is correspondingly measuring device and/or the monitoring arrangement that is configured to measure heart rate, and wherein heart rate is as regulating parameter and/or the setting of conduct inspection parameter.Heart rate for example is suitable in the inspection of heart perfusion not only as the adjusting parameter of the load condition that has represented heart but also as the inspection parameter of fine reflection patient's general state.Correspondingly can realize simple especially apparatus for this special inspection, measuring device and monitoring arrangement provide by common device in described apparatus.But preferably, measuring device and monitoring arrangement provide by the measuring device of redundancy of effort, and it is preferably controlled by common control unit.The enforcement of another replacement is set in addition, measuring device and monitoring arrangement comprise that by device independently the control unit of itself realizes respectively in described enforcement, and control unit is connected to each other on signalling technique in order to communicate by letter in described enforcement, and wherein the control unit of monitoring arrangement has precedence over the control unit of measuring device under alarm condition.
In order directly or indirectly to determine heart rate, be fit to especially at this following equipment: (for example computed tomograph) original so-called triggering EKG that just arranges in the mode of different generation images, preferably be integrated into measurement device, the collection of pulse blood oxygen instrument in the mode that produces image, acoustics and analyze the patient the thoracic cavity motion optics measurement device, radar equipment or produce the mode of image itself, wherein in this assessment and analyze for example change, view data or the so-called k spatial data of the magnetic resonance signal of coil.
If heart rate is set as regulating parameter and/or as checking parameter, also about the load condition of this heart rate definition or definite plan, the value of jumping greater than per minute 100 for example being set wherein.Alternatively or addedly, about the load condition with respect to the deviation definition plan of resting state, wherein heart rate for example improves per minute at least 20 with respect to resting state and jumps in the load condition of plan.
Except heart rate, patient's blood pressure also is suitable for not only conduct adjusting parameter but also the use of conduct inspection parameter.The enforcement of control unit correspondingly is set, and measuring device and/or monitoring arrangement are configured to Measure blood pressure in this enforcement.
In addition, the distortion of control unit is set, measuring device and/or monitoring arrangement are configured to measure blood flow in this distortion, blood flow wherein are set in this case as regulating parameter and/or conduct inspection parameter.Heart rate and blood pressure and blood flow are proved to be for regulating and/or being specially suitable parameter for supervision.
In addition, the following enforcement distortion of control unit is suitable, in this enforcements distortion measuring device and/or monitoring arrangement be configured to monitor and assessment heart rate or paced heart rate and in this enforcements distortion measuring device and/or monitoring arrangement derive adjusting parameter and/or inspection parameter from heart rate or paced heart rate.Preferably, not only gather the heart beat at this, and for example by ecg equipment, be called for short EKG equipment, record all electrical activity summations of all cardiac muscle fibers.Regulate in this case parameter or check that parameter not only determines based on the change of heart beat, and change based on the institute of the electrical activity of cardiac muscle fiber.For example, systole or other rhythm extra to the Electrocardioscopy that gathers disturb, so-called irregular R-R interval for example, and in the situation that reduce the injection rate of injection device adjusted material or interrupt injection fully with the corresponding deviation of Electrocardiographic normal trend.Particularly advantageously at this be, use above-mentioned triggering EKG, it is originally in the mode of different generation images just to arrange.By small modification, the coupling of software for example namely, such triggering EKG can additionally be used as measuring device and/or as monitoring arrangement.
In addition, the following distortion of control unit is favourable, in this distortion measuring device and/or monitoring arrangement be configured to assess the view data that produces by the mode that produces image and in this distortion measuring device and/or monitoring arrangement derives adjusting parameter and/or inspection parameter from the view data that produces.The value that for example therefore can gather the motion of cardiac function and particularly heart wall and therefrom can determine again to thicken for so-called cardiac muscle on measuring technique, it not only is suitable for as the adjusting parameter but also is suitable for as checking parameter.
Corresponding to a kind of specially suitable structure of testing fixture, the control unit of central authorities of the mode that produces image is set as control unit.The control unit of central authorities that produces the mode of image is taken over additional task in this case, and this additional task is alternatively fulfiled by control unit independently.Usually originally just provided central control unit because produce the mode of image, so by this way almost by also can realize the security concept in this introduction in the situation that is updated in relatively little expense in adopted medical examination apparatus.At the best of times, so only carry out change and the change in the control software of each assembly in the scope of the exchanges data between each equipment of testing fixture.
In order also to arrange in a kind of distortion of particularly preferred this external testing fixture of compatibility, in order to communicate between control unit, the mode that produces image and controllable injection device, adopt standardized connection, such as " CAN bus " or " bluetooth " and standard agreement.
In addition, a kind of control unit distortion is suitable, during measuring device and/or monitoring arrangement were integrated into the mode that produces image in this control unit distortion, as in the situation of the triggering EKG that describes in front, it is the part of corresponding computed tomograph typically.The common assembly of modular in integrated like this enforcement, namely herein computed tomograph and trigger EKG and coordinate mutually particularly well.
In addition, provide a kind of enforcement of control unit, for injection rate and/or for the accumulated dose of Auto-regulator, boundary value is set in this enforcement, wherein control unit preferably prevents from exceeding this boundary value by the corresponding control to injection device automatically.At this, corresponding boundary value preferably provides in advance in the preparatory stage that checks and is complementary with separately patient or inspection separately.For injection rate for example the boundary value of 5 milliliters per minute be suitable.
In addition, provide a kind of enforcement of the control unit with additional security function, do not experienced trigger alarm situation of great change as long as regulate parameter within for example waiting time of 3 minutes that provides in advance in this enforcement.The mistake injection of Auto-regulator for example may occur in this case, preferably also be switched to safe mode due to apparatus and particularly injection device at this under alarm condition.
Description of drawings
Below explain in detail the present invention by schematic figures.Wherein,
Fig. 1 shows the block diagram of medical examination apparatus.
The specific embodiment
In the situation of the medical examination apparatus 2 of describing in the back and schematically show in Fig. 1, in order to check that by formation method the patient adopts the magnetic resonance tomography instrument 4 with central control unit 6, is called for short MRT 4.According to the difference of selected inspection method, arrange in addition, Auto-regulator is expelled in the patient.Medical examination apparatus 2 comprises injection device 8 for this reason, and it is syringe pump in this representative configuration, also referred to as dosing pump.
The injection device 8 that adopts in this embodiment is controlled injection devices 8, and it is connected with the control unit 6 of MRT 4 on signalling technique and it is controlled by control unit 6.By this way, time of the injection rate of the injection of Auto-regulator and particularly Auto-regulator is changed with selected inspection and patient separately be complementary, in order to pro affect thus quality and the cogency of view data to be generated.
Before the corresponding beginning that checks, the patient is positioned on the examining table of MRT 4.In addition, as long as be provided with the injection of Auto-regulator herein, will be incorporated in patient's health as the entry needle of the part of injection device 8, typically in vein.The operator, Medical Technology assistant (MTA) for example namely, then for example be used for the control sequence of control unit 6 by the input parameter group selection through control station not shown further, determine by this control sequence during checking how to control MRT 4 and to control on the other hand injection device 8 on the one hand.
Medical examination apparatus 2 also comprises the EKG equipment for the electrical activity of the cardiac muscle fiber of definite and record patient, and also assesses the assessment unit 12 of the view data that produces as the partial analysis of MRT 4.
In the back exemplary description by 4 pairs of heart perfusions of MRT, in the inspection of the plan of the namely blood supply of patient's heart (hemoperfusion), measure blood supply (hemoperfusion) or the heart perfusion of heart under so-called load condition.For this reason by injection device 8 to the patient infusion Auto-regulator, patient's heart beating thus, blood pressure and blood flow increase.For the healthcare givers as well as possible assess patient state and can set up diagnosis based on the view data that produces in the scope that checks, for example problematic narrow in this case, advantageously, under the load condition that provides in advance, namely carry out actual measurement under the patient's who provides in advance stress level, carry out the generation of view data in the measurement of described reality.Be noted that at this Auto-regulator that gives is the load of not expecting for the patient, it is on the one hand necessary and should keep on the other hand the least possible for inspection.
For this reason, very well control the stress level that ground causes the load condition of expectation and plan as far as possible accurately is set.At first the control unit 6 of process on injection device 8 arrange the initial value for the injection rate of Auto-regulator for this reason, and this initial value is to select from the value table according to patient's body weight.Then injection rate is slowly improved, for example at first with 0.5ml per min 2, until reach the stress level of plan, this stress level provides by the determined value for blood flow in this case.
Determine concurrently the blood flow of the heart by the patient and be transferred to control unit 6 as regulating parameter by MRT 4 and assessment unit 12.According to the value of regulating parameter, control unit 6 changes on the one hand for the injection rate of Auto-regulator and changes on the other hand the injection rate of each interval on controlled injection device 8, until be provided with the value that provides in advance for blood flow.Correspondingly MRT 4 forms regulating loop together with assessment unit 12, control unit 6 and injection device 10, utilize this regulating loop accurately the amount of Auto-regulator to be transferred to the patient, this amount be for the stress level that causes expectation in the patient and thus the expectation load condition necessary.For example when surpassing value 20% in resting state, blood flow provides suitable load condition.
Because the patient be subject to the load of Auto-regulator and thus Auto-regulator to give for the patient be a kind of risk, so for patient's safety monitoring arrangement additionally monitors the patient to the reaction of Auto-regulator, described monitoring arrangement provides by EKG equipment 10 and control unit 6.At this, gather patient's heart beating and particularly palmic rate by EKG equipment 10 on measuring technique.If heart rate surpasses first boundary value, for example 120 times per minute, the adjusting for the injection rate of Auto-regulator is set to invalid and reduces injection rate according to the value table of storing step by step control unit 6 by regulating loop, until heart rate is reduced to again first boundary value.Do not surpass the Second Edge dividing value if reach reduction and the palmic rate of palmic rate by reducing injection rate, for example 160 times per minute, control unit 6 stops the further injection of Auto-regulator fully.Additional guarantee has like this reduced overladen risk and thus for patient's danger situation.Will consider at this, the side effect that also may occur not expecting except the effect of having a mind to of Auto-regulator is such as anaphylaxis.
In order to determine blood flow by MRT 4 and assessment unit 12, preferably adopt in being at present adopted magnetic resonance tomography instrument available measuring method, ASL(arterial spinlabeling for example namely, arterial spin labeling) or the sequence of flow-sensitive.
Prevent the further guarantee of error checking as medical examination apparatus 2, arrange in addition, if by the mode that produces image, namely MRT 4 is together with assessment unit 12, in the waiting time that provides in advance, for example after passage in 3 minutes, be not recorded to the change of regulating parameter, namely be not recorded to herein the change of blood flow in the situation of exemplary description, disconnect injection and the preferred whole inspection of Auto-regulator.
The invention is not restricted to previously described embodiment.On the contrary, professional's other distortion of the present invention of can therefrom deriving, and do not depart from the scope of the present invention.Especially, can also make up mutually the feature of describing in conjunction with the embodiments according to other modes, and not depart from the scope of the present invention.

Claims (16)

1. control unit (6) that is used for apparatus (2) comprises the mode (4) that produces image, the measuring device (4,12) that is used for the measuring and adjusting parameter and for the controlled injection device (8) of the Auto-regulator that affects described adjusting parameter,
Wherein, described control unit is configured to, value or the time-evolution of at least one device parameter of injection device (8), injection rate particularly, be changed like this during data acquisition, make the value that reaches for the plan of regulating parameter, this value shows the load condition of patient's plan.
2. control unit according to claim 1 (6), wherein, described apparatus (2) comprises monitoring arrangement (10,12), it is used for measuring the inspection parameter that affects by Auto-regulator.
3. control unit according to claim 2 (6), wherein, when checking abnormal trend or the offrating of parameter display, when particularly surpassing the boundary value that provides in advance, described apparatus (2) is switched to safe mode.
4. control unit according to claim 3 (6), wherein, the injection rate of described injection device (8) reduces in safe mode.
5. control unit according to claim 3 (6), wherein, described injection device (8) is disconnected in safe mode.
6. according to the described control unit of any one (6) in the claims 1 to 5, wherein, for checking that parameter arranges the first and second boundary values, wherein, reduce the injection rate of injection device (8) when checking that parameter surpasses first boundary value, and disconnect injection device (8) when checking that parameter surpasses the Second Edge dividing value.
7. according to the described control unit of any one (6) in the claims 1 to 6, wherein, described injection rate improves with the rate of increase that provides in advance from the basic value that provides in advance during data acquisition, until reach the load condition of plan.
8. the described control unit of any one (6) according to claim 1 to 7, wherein, injection of contrast medium except Auto-regulator.
9. the described control unit of any one (6) according to claim 1 and 2 to 6, wherein, described measuring device (4,12) or monitoring arrangement (10,12) are configured to measure heart rate, and wherein, heart rate is set to regulate parameter or checks parameter.
10. control unit according to claim 9 (6), wherein, the load condition of plan is in the situation that provide greater than the heart rate of 100 times per minute.
11. according to claim 9 or 10 described control units (6), wherein, described heart rate improves with respect to resting state with 20 times per minute in the load condition of plan at least.
12. the described control unit of any one (6) according to claim 1 and 2 to 11, wherein, described measuring device (4,12) or monitoring arrangement (10,12) are configured to Measure blood pressure, and wherein, blood pressure is set to regulate parameter or checks parameter.
13. the described control unit of any one (6) according to claim 1 and 2 to 12, wherein, described measuring device (4,12) or monitoring arrangement (10,12) are configured to measure blood flow, and wherein, blood flow is set to regulate parameter or checks parameter.
14. the described control unit of any one (6) according to claim 1 and 2 to 13, wherein, described measuring device (4,12) or monitoring arrangement (10,12) be configured to measure and assess heart rate or paced heart rate, and wherein, described measuring device (4,12) or monitoring arrangement (10,12) derive from heart rate or paced heart rate and regulate parameter or check parameter.
15. the described control unit of any one (6) according to claim 1 and 2 to 14, wherein, described measuring device (4,12) or monitoring arrangement (10,12) be configured to assess the view data that produces by the mode that produces image, and wherein, described measuring device (4,12) or monitoring arrangement (10,12) derive from the view data that produces and regulate parameter or check parameter.
16. medical examination apparatus (2) that has according to the described control unit of any one in the claims (6).
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